*{
    margin: 0;
    padding: 0;
    text-align: left;
    box-sizing: border-box;
    font-size: 14px;
}
.shadow{
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.1);
    background: #fff;
    padding: 15px 20px;
    border-radius: 5px;
}
.clear {
    clear:both;
    display: block;
    content: '';
}
ul{
    li{
        list-style: none;
    }
}
.red{
    color:red;
}